I have an entire series of posts on the irrelevancy of "experts" in all sorts of things, but mainly with regards to public policy.
Let's take a look at a movie expert who doesn't know movies, dietary advice that's all over the place, and a nature expert concerned that birds can't fly over walls.

Before I begin (and I know… you’re thinking… two posts in one day! What evil thing did we do to deserve this?!), I want to indicate that I’m in a bad mood. I had to postpone giving my midterm for my class because there had been a power outage...